2009 Mercedes-Benz SLK 3.0L Petrol · SC04 DOD
2009 Mercedes-Benz SLK (3.0L, petrol). First registered 10 Nov 2009. Recorded mileage 91,671 miles. MOT expired on 24 Oct 2026.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2009 · Glasgow
- Safety Recall
- Unknown
- MOT Status
- Expired on 24 Oct 2026
- Road Tax
- —
- Recorded Mileage
- 91,671 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 3.0L
- Reliability Guide
- Common Faults
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SC04 DOD Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 10/10/2025
- 91,671 miles recorded at latest MOT
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
SC04 DOD MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
4 MOT tests are recorded for this 2009 Mercedes-Benz Slk (SC04 DOD) between October 2022 and October 2025.
The record contains 4 passes and 0 failures.
The record shows no MOT failures, although 1 advisory notice notes an item to monitor.
Across all tests, the most frequently flagged areas are: Tyres (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 1 advisory notice is recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
SC04 DOD Mileage History
- 24/10/202279,373 mi
- 06/10/202380,510 mi+1,137 mi
- 03/10/202481,416 mi+906 mi
- 10/10/202591,671 mi+10,255 mi
Average of roughly 4,151 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mercedes-Benz Mercedes-Benz SLK (R171)
Our database tracks 6 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
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MERCEDES-BENZ SLK Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2009 model year cars.
- Vario-Roof Hydraulic LeaksModerate
The complex folding hardtop uses multiple hydraulic cylinders that can leak as the seals age.
- Rear Subframe Corrosion and PerforationSerious
The pressed-steel multi-link rear subframe on the R171 SLK is highly prone to severe internal corrosion, aggravated by decades of wet UK winter roads and road salt. Moisture and grime accumulate inside the hollow box sections, rusting the subframe from the inside out until structural perforation occurs around the suspension control arm mounting points. In severe cases, an arm mount shears off entirely, causing sudden dangerous rear-wheel steering and an immediate MOT failure. Mercedes-Benz UK has historically assessed replacements under goodwill on a case-by-case basis.
- 7G-Tronic Automatic Transmission Conductor Plate FailureModerate
The 722.9 7G-Tronic 7-speed automatic gearbox fitted to six-cylinder R171 SLKs features an electro-hydraulic conductor plate (VGS unit) submerged in hot automatic transmission fluid. Over time, thermal cycling and metallic sediment cause the integrated turbine and output speed sensors (Y3/8n1 and Y3/8n2) to fail, triggering diagnostic codes P0717, P0718, or P0705. When the signal drops, the transmission defaults into emergency limp-home mode, locking the gearbox into 2nd gear or reverse until restarted. Independent specialists can rebuild the plate, saving the cost of a brand new SCN-coded valve body.
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